Re: [Xen-users] Failed to assign PCI NIC to pciback

[Peter Müller <peter.mueller@xxxxxxxxxxx>]

Hi,

why don't you add pciback.hide as boot option like this (without double quotes and system-specific options like root2fstype, which belong to my Univention Corporate Server)?

"module  /vmlinuz-2.6.26-ucs18-xen-amd64 root=/dev/mapper/ucs-root ro root2fstype=ext3 splash=silent console=tty0 fbcon=map:2 pciback.hide=(01:06.0)(01:08.0)"


I'm running Debian Etch with Xen and pciback in this config since some month and encountered no problems with it.

Greetings Peter

Bao, Chunjie schrieb:

I’m running XEN 3.2.0 on a Dell PowerEdge with 3 NIC cards(1 broadcom and 2 intel e1000). Each NIC card has two ports on it.  To Assign 5 of the 6 NIC ports to domU, I add three lines to the /etc/modprobe.conf :

 

options pciback hide=(0c:00.1)(0c:00.0)(0a:00.1)(0a:00.0)(07:00.0)

install bnx2 /sbin/modprobe pciback ; /sbin/modprobe --first-time --ignore-install bnx2

install e1000 /sbin/modprobe pciback ; /sbin/modprobe --first-time --ignore-install e1000

 

This seems always work, but, some times when I restart my server I found some of the domU failed to startup.  This is the erro log in xend.log:

 

Traceback (most recent call last):

          File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 420, in start

            XendTask.log_progress(31, 60, self._initDomain)

           File "/usr/lib/python2.4/site-packages/xen/xend/XendTask.py", line 209, in log_progress

             retval = func(*args, **kwds)

          File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 1764, in _initDomain

            raise exn

VmError: pci: PCI Backend does not own device 0000:0a:00.0

See the pciback.hide kernel command-line parameter or

bind your slot/device to the PCI backend using sysfs

 

This is the output of “lspci | grep Ethernet”

03:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)

07:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)

0a:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06)

0a:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06)

0c:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06)

0c:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06)

 

 

It seems the pciback failed to grab the NIC port(0a:00.1) and e1000 driver has probed the NIC port before pciback. But I cannot find anything wrong with the modprobe.conf.   Does anybody has some suggestion on this?   Thanks in advance!

 

 

--Jerry

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